If you’re interested in reading more tips about cartoon drawing technique, there’s a relevant book I’ve read some of, How to Make Webcomics: http://www.amazon.com/How-Make-Webcomics-Scott-Kurtz/dp/1582.... I sampled a few chapters in a bookstore and remember that the author of PVP gave very similar advice, which I found interesting reading. I’m not skilled enough to evaluate the book’s drawing advice, but it looked like the authors knew what they were talking about. Though I’d caution that their advice seemed skewed to comics that update often and have a relatively simple drawing style, as opposed to the kind of comic that releases a detailed full-color page once a week.